Trolley wheel and frog



J KUSHNIER.

TROLLEY WHEEL AND FROG. APPLICATIONTILED MAY 21, 1922.

Patented Oct. 311, 11922.

- INVENTOR ATTORNEY Patented @et. Bl, I922.

snares .IOHN KUSHNIER, or nvnLLA, PENNSYLVANIA.-

' more WHEEL AND FROG.

Application filed May 27,

T 0 all whom it may concern Be it known that 1, JOHN KUsHNIER, a citizen of Czecho-Slovakia, residing at Avella, in the county of Washington and State of Pennsylvania, have invented new and useful Improvements in Trolley Wheels and Frogs, of which the following is a specification.

This invention relates to a trolley wheel and frog, and more particularly to a wheel and frog provided with co-operating means for preventing the wheel from leaving the trolley wire when the car is passing a crossing or making a turn.

One of the main objects of the invention is to provide a trolley wheel and frog having means of simple construction and efficient operation which effectually prevent the wheel from jumping from the trolley. A further object is to provide means of the character stated of simple construction and operation which may be produced and 1nstalled at comparatively small cost. Further objects will appear from the detailed de scription.

In the drawings Figure 1 is a side view of the frog and trolley wheel;

Figure 2 is an underneath view of the fro Figure 3 is an underneath view of the trolley pole and associated parts;

Figure 4 is a section taken substantially on line l-4 of Figure 2;

Figure 5 is a detail of the guiding and retaining wheels engaging over the trolley wire.

Ihe frog includes a block 1 provided in its underface with a channel 2 which flares toward one end. In the narrower end of channel 2 there is a rib 3 to which is secured trolley wire 4t.- In the flaring portion of channel 2 there is provided a rib 3* which is disposed in alignment with rib 3 and to which is secured a trolley wire 4. A second rib 3 is provided in flaring portion 2 of channel 2 and is disposed at an angle to rib 3. An inwardly tapering guide finger 5 is positioned between the ribs 3 and 3 The lateral walls of channel 2 and the flared portion 2 of the channel are inclined downwardly and inwardly of the block, and the lateral faces of the ribs 3, 3 and 3 and finger 3 are inclined so as to form with each other and with the lateral walls of the channel a plurality of downwardly converging 1 9122. SeriarNo. scares.

slots or passages adapted for reception of frusto-conical guiding and retaining wheels carried by a trolley pole, to be described.

A trolley wheel 6' is 'rotatably mounted in the upper end of a trolley pole 7 on "the p trolley wheel 6 enters the block the wheels 1O engage into the downwardly tapering grooveformed 'by the downwardly and'inwardly inclinedtlateral walls 5 of block 1 and rib 3. If the car continues to travel straight ahead, the wheels 10 enter into the passages or slots formed by the lateral wall of block 1 and the adjacent wall of rib 3 and the lateral wall of finger 3 and the adjacent wall of rib 3. This serves to effectually prevent the trolley wheel from jumping oil of the wire as it enters into and passes through block 1. As wheels 10 are positioned in rear of trolley wheel 6 and normally engage over the trolley wire, they also serve to prevent the trolley wheel from leaving the wire. A trolley wire 4 is secured to rib 3*, this rib being provided to permit the trolley wheel to make a turn as when the car travels about a curve. The operation of the device in this case will be the same as that previously described. As will be understood, the rib 3 may be placed at either side of the block depending upon in which direction the turn is to be made and, if desired, there may be two ribs provided one at each side of the rib 3.

To permit the pole to be lowered when trolley wheel 6 is not in block 1, I provide means whereby the retaining and guide wheels 10 may be moved away from each other for disengaging the same from contact with the trolley wire. For this purpose an eye 14 is secured to trolley pole 7 and through which is trained a cord 13. A pair of converging cords 15 have their far ends secured to the ends of the rod opposite to the wheels 10. The rods 8 are bent intermediate of their ends so as to provide angular portions at their points of pivotal connection.

This manner of connection provides for arranging the oppositeends of each'rod upon the same side of the longitudinal center of the trolley pole 7 or as clearly shown'in Figure 3 of the drawings, therefore it is obvious that by pulling on cord 13 the lower ends of the rods are forced together, thus moving the guiding and retaining Wheels 10 away from each other out ofenga ement with the ley. w re- I- Y K hf the charactercdescribed, a blockp rovided, with a channel in its fun derf'ace; the side walls o'ffthe" channel being under-cut, "ribs in, said, channel; wires secured o: sa d! f b y' rolley p ;'a l ey he carried by said pole and ad Ptfid forlengagev menu with said wire's and merits; and, guid:

ing; and retaining; members"; carried. by the pole and positioned and adaptedv for engage- Inent with the undercut walls L (if the channel.

'2, In a deviate the; characa a described, ablock proyided ith achannelfin a u d r,- ace, the sidewalls or ule c nnel being undercuflribsjin. said channel; wires secured to said ribs; a trolley "pole, atrol ley wheel carried by said pole and adapted fori engag ment' with said wires and the; ribs, guiding andfretaining ineinbersgcarriedby the pole.

@ j t na z ad. da ed f r n a men withithe undercut walls of the channel, and

means for forcing said members away. from each other. i

3; In a device of the character described, a block'provid'ed with a'channel in its underface, the side walls of the channel being inclined downwardly and inwardly of the block, ribs in saidchannel, wires secured to said ribs,"a"trolley pole, a trolley Wheel carried by said pole and. adapted fol: engagem tw th sa dv Wir d the r ba guidli and; tw ing ember of. inverted r stere aieel Shape mt tahla eu ted 0n t11e Pele aedtesifiened fen eng ment with th nd-m i al cot theehan el I .41. 1 edema o he ara er. de b a block provided with a channel in its under"- a he Sid Well QihQ channe b g ne de nw rd y a ds nward y of he block, ribs in said; channel, wires secured to ai w t oll y pele a r l ey Wh a 'edf i an; P le, nd adapted ort 

